When comparing Apple Watch vs Polar M400, the Slant community recommends Polar M400 for most people. In the question“What are the best fitness trackers?”Polar M400 is ranked 4th while Apple Watch is ranked 16th. The most important reason people chose Polar M400 is:

The "Sport Profile" feature allows you to customize what stats you want to see for each type of exercise. For example, you may want the GPS on for running but not for a circuit workout. These preset profiles save you from having to set up the device each time you exercise.

Pros

Pro

Heart rate sensor

Pro

Works well with iPhone

Pro

First -rate app support

Pro

Standalone phone calls

Series 3 can make and receive phone calls by itself, without the need to connect to a smartphone.

Pro

Haptic feedback for notifications

Pro

Digital Crown

The Digital Crown allows you to zoom in and out with various applications and can be used as a button.

Pro

Sensitive touch

Allows for taps and presses to be registered as two different types of input.

Pro

Gives you a lot of options for customizing different types of workouts

The "Sport Profile" feature allows you to customize what stats you want to see for each type of exercise. For example, you may want the GPS on for running but not for a circuit workout. These preset profiles save you from having to set up the device each time you exercise.

Pro

Gives you custom activity goals suitable for your level

The daily activity goal is a good way to find out how active you really are in your everyday life. Here you can choose your typical activity level from three options and see how active you need to be to reach your daily activity goal.

The time you need to complete your daily activity goal depends on the level you have chosen and the intensity of your activities. Age and gender also affect the intensity you need to reach your daily activity goal.

Pro

Ability to add training notes

The app allows you to add additional notes to your workouts for better tracking.

Cons

Con

Expensive

Apple Watch is said to cost $349 USD.

Con

Works only with iPhones

You need to have an iPhone (5 or later) to pair this smartwatch. It will not work with any other device, and has limited capabilities on its own (and still require the iPhone for the initial setup).

Con

Sleep tracking lacks detail and accuracy

If you are awake for an extended period of time in the middle of the night and then fall back asleep, the fitness tracker may not see the additional hours as part of your sleep.

Con

Unattractive and bulky design

The tracker is quite wide and hard to miss, it's not something that can blend in with what you're wearing outside of sport/exercise type settings.

Con

Short battery life when using the GPS

With the GPS turned on, battery life goes from around 24 days to 9 hours.

This is likely fine for people who will always have opportunities to charge it after their run. However for anyone hoping to use the GPS for longer activities, such as hiking, that may not be long enough to be useful.

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